Official applicaiton will block IPv6 because of no support for it, but OpenVPN on router doesn’t (maybe there is a way to configure it to do so, though I’m not sure). As like DNS was the previous leak i had, which i had to configure wan interface by unchecking ‘use dns advertised by peers) and use primary and secondary dns of vpn provider

For setting up OpenVPN IPv6 server: requires DHCPv6-PD At this point, I have OpenVPN working very well and it has been for a long time. However, any clients whose ISPs support IPv6, these packets, when connected to IPv6-specific websites, do not go through the VPN (and they wouldn’t on any VPN not configured to support IPv6). One option is to disable IPv6 on the computer while connected to the VPN. Always On VPN features | Microsoft Docs Support for both IPv4 and IPv6. With Always On VPN, users can access both IPv4 and IPv6 resources on the corporate network. The Always On VPN client uses a dual-stack approach that doesn't specifically depend on IPv6 or the need for the VPN gateway to provide NAT64 or DNS64 translation services. Support for two-factor or OTP authentication. OpenVPN - Wikipedia

OpenVPN — OpenVPN and IPv6 | pfSense Documentation

I need some clarity with respect to IPv6. Generally I like IPv6 more than IPv4, it's simpler and cleaner, and has better performance. As for now, the OpenVPN client on GNU apparently only works on the IPv4 stack and ignores IPv6 requests completely, so they may create direct connections and thus leak my location. You probably use NAT, and both 6to4 and 6in4 uses protocol 41 which isn't NAT friendly. Teredo might work inside an IPv4 openvpn tunnel, but it's much better to configure IPv6 inside the tunnel instead if you are able to change the openvpn server configuration. (And add a 6in4 tunnel to the server if it doesn't have native IPv6.) Install OpenVPN on a Synology NAS 1. Disable IPv6. In order to connect to OVPN - you will first need to disable IPv6. 2. Open your Synology control panel 3.

How to avoid an IPv6 Leak with NordVPN? - Live Chat, VPN

Get Started with OpenVPN Connect. OpenVPN Connect is the free and full-featured VPN Client that is developed in-house. It is the official Client for all our VPN solutions. Any other OpenVPN protocol compatible Server will work with it too. Our desktop client software is directly distributed from our Access Server User portal.